12312342 has 96 divisors (see below), whose sum is σ = 33196800. Its totient is φ = 3219264.

The previous prime is 12312331. The next prime is 12312347. The reversal of 12312342 is 24321321.

12312342 is a `hidden beast` number, since 12 + 312 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88509 + ... + 88647.

It is an arithmetic number, because the mean of its divisors is an integer number (345800).

Almost surely, 2^12312342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12312342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16598400).

12312342 is an abundant number, since it is smaller than the sum of its proper divisors (20884458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12312342 is a wasteful number, since it uses less digits than its factorization.

12312342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 12312342 is about 3508.8946977645. The cubic root of 12312342 is about 230.9122059130.

Adding to 12312342 its reverse (24321321), we get a palindrome (36633663).

It can be divided in two parts, 12312 and 342, that multiplied together give a square (4210704 = 2052²).

The spelling of 12312342 in words is "twelve million, three hundred twelve thousand, three hundred forty-two".